Number of statistically significant principal components (PCs) using different stopping rules.
| Stopping rule | Number of statistically significant PCs |
|---|---|
| Pseudo-F ratio | 4 |
| Eigenvalues P-value | 1 |
| Broken stick | 1 |
| Auer-Gervini: TwiceMean | 1 |
| Auer-Gervini: K-means (k = 2) | 1 |
| Auer-Gervini: K-means (k = 3) | 1 |
| Auer-Gervini: spectral clustering | 1 |
| Auer-Gervini: changepoint | 1 |